Year	current US$
1966	500000
1968	1299999.95231628
1969	1200000.04768372
1970	1100000.02384186
1971	1299999.95231628
1972	2549999.95231628
1973	1879999.99523163
1974	4380000.11444092
1975	6650000.09536743
1976	7010000.228881841
1977	6199999.80926514
1978	7159999.84741211
1979	7460000.03814697
1980	12850000.3814697
1981	16940000.5340576
1982	25829999.9237061
1983	21180000.3051758
1984	17729999.5422363
1985	22620000.8392334
1986	20719999.3133545
1987	24239999.7711182
1988	25729999.5422363
1989	27899999.6185303
1990	37700000.762939505
1991	42180000.3051758
1992	36419998.1689453
1993	28530000.6866455
1994	23010000.2288818
1995	17450000.762939498
1996	13020000.4577637
1997	5880000.11444092
1998	5039999.96185303
1999	4329999.92370605
2000	4780000.20980835
2001	4670000.07629395
2002	7139999.8664856
2003	4389999.8664856
2004	34799999.237060495
2005	13920000.076293899
2006	13899999.6185303
2007	18280000.6866455
2008	17409999.8474121
2009	15960000.038146999
2010	15189999.5803833
2011	13560000.4196167
2012	12369999.8855591
2013	15510000.2288818
2014	11340000.1525879
2015	6820000.17166138
2016	5579999.92370605
2017	5659999.84741211
2018	6750000
2019	7570000.17166138
2020	8069999.694824221
2021	8930000.30517578
2022	10899999.6185303